National Item Identification Number

00-263-3041
002633041
3940-00-263-3041
3940002633041

National Stock Number

Item Name

BLOCK,TACKLE

Federal Supply Class

3940

Description

A mechanical device, consisting of a pulley(s) or sheave(s) encased in a shell or frame which may be provided with a means such as a hook, eye, strap, screw, etc., by which it may be attached to an object. It is used to change direction of a running rope and/or to gain a mechanical advantage.

Commercial and Government Entity Code (Supplier Data)

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02154

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ROYSON ENGINEERING COMPANY
100 N PENN ST
HATBORO
PA
19040
215-675-2800

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Reference Numbers (Part Numbers)

S1801-860466
1776

Required Categories

STYLE DESIGNATOR
SHELL LENGTH
SHEAVE OUTSIDE DIAMETER
CENTER PIN DIAMETER
BL

Required Description

21 HALYARD PATTERN
2.938 INCHES NOMINAL
1.750 INCHES NOMINAL
0.313 INCHES NOM